I am creating a TCP socket on port 21 using server hostname.The code work fine in my laptop but when i test in a device with WindowsXPe , i am getting a Dns.Resolve error as "The type initilizer for system.Net.Dns threm exception"
[Code]...
I have a large project where we have 2-3 dll projects that are converted from VB6 to VB.NET. We have fixed all the issues that caused compilation errors, and most of obvious issues in running, so now we have basically a program up and running. The exe is created from scratch in VB.NET, using a lot of functionality from the converted dll's (including GUI forms). What I wonder is when I run the program in debug mode, I get a bunch of warnings in the "Immediate Window" saying:
A first chance exception of type 'System.Exception' occurred in Microsoft.VisualBasic.dll
...and some of other type (but most of them in Microsoft.VisualBasic.dll).I was wondering if this is common in projects converted from VB6, or if it is caused by bad design in our code...
I am using VS 2008, Office 2007, and Win7 Home Premium on my system.I have a simple application which should be a breeze to build. All I am attempting to do is pull data from an Access database with four small tables into a data grid on a windows project. Should be simple, set up the data connection, choose a datagrid from the table in the data source view, drag it onto the page and done, right?I can't get it to work. It will all work fine until I attempt to run or debug the project. The data will not show up. The data grid does, but I get this error: A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll
As I said, the project seems to build fine, but it will not pull the data. After the initial build I get the message that Windows will show this page in Compatibility View. Is it something with Win7 Home Premium, or a setting somewhere?
get out from the below loop
Shared Function GetIPAddress() As String
Dim sam As System.Net.IPAddress
Dim sam1 As String
[code]....
When I run my project I get "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll"
Public Class frmViewReport
Dim objForm As New frmViewReport
Private Sub frmViewReport_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
objForm.ViewReport("C:a2.rtp", , "@parameter1=test�mter2=10")
[code]....
I have the following code running, the first time I change the selected index, everything runs smoothly. However, if I try to change the selected index again, nothing happens and the subcategories combobox values do not change.
Private Sub cboMainCategory_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cboMainCategory.SelectedIndexChanged
'* make sure the combobox is fully loaded
[code]....
I keep getting an eroor this error says: An unhandled exception of type 'System.ArgumentOutOfRangeException' occurred in system.windows.forms.dll Additional information: Specified argument was out of the range of valid values.
Option Strict On
Public Class frmWeeklyReport
Inherits System.Windows.Forms.Form
[code].....
I am working on a card game, and i get this werid error:
A first chance exception of type 'System.Reflection.TargetParameterCountException' occurred in System.Windows.Forms.dll
The code that is cousing this error is:
Private Delegate Sub ShowcardDelegate(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
Private Sub Showcard(ByVal test As String, ByVal objtest As Object, ByVal value As Boolean)
If objtest.InvokeRequired Then
[code].....
I'm using a 64 Bit Windows 7 system and trying to use PrintDialog. I know it doesn't work on Windows 7 unless you add this
PrintDialog1.UseEXDialog = True
So I have added that code but then I get this error for the following
Dim result As DialogResult = PrintDialog1.ShowDialog()
And the error:
"An exception of type 'System.Runtime.InteropServices.SEHException' occurred in System.Windows.Forms.dll but was not handled in user code
Additional information: External component has thrown an exception."
I am using VB.NET 2005 to create a Windows forms application. I have a procedure named SendMail that creates an instance of Outlook.Application, to send an email from my application. I found the code on this forum, I think.The procedure works fine, but I can't use error handling with it.I call the procedure from a button click event. I put the procedure call in a try/catch block, and the application won't build, with the following error.
Error 68 'Catch' cannot catch type 'Microsoft.Office.Interop.Outlook.Exception' because it is not 'System.Exception' or a class that inherits from 'System.Exception'. C:datadevdmtiQTSQTSv7_1_20100212wQTSQTSReportsCriteria
pt_frmReportViewer.vb 43 21 QTS
Here is the code:
Sub SendMail(ByVal sFile As String)
' Create an Outlook application.
Dim oApp As Outlook._Application
[code]....
I'm prompted with this error 'Exception of type 'System.OutOfMemoryException' was thrown' it was thrown when filling a dataset with 400,000+ records. And I think obviously is about memory matter because of the number of records to be transfer.My program goes this way.. after filling a dataset from a table it will transfer all data into another table. Now my question is, Is it possible in vb.net that while filling a dataset it transfers the record immediately into another table? Please give me an idea on how to do this.
View 2 RepliesI am working on a multi-form code. For some reason, this randomly began happening just about the time I finished my code. The intial form loads just fine, but when I go to click on any of the selected buttons, the code crashes. and I get an unhandled exception of type 'System.stackoverflowexception' occured. Does anyone have any ideas? I have checked for any subs calling subs that call subs and I don't have anything of that nature. It is breaking at the point that is bolded and underlined.
Public Class Add_Description
Inherits System.Windows.Forms.Form
#Region " Windows Form Designer generated code "
[code]....
I just tried to run a project of mine that has a wpf control in it and i get the error:Exception of type 'System.ExecutionEngineException' was thrown.The error automatically closes after about 3 seconds When I create a new WPF project visual studio closes down - no error messages, also just closes with no errors if I create a form application and add a WPF control to it. Also compiled applications just bring up the "xxx has stoped working" error - even apps that are not mine such as Microsoft Pivot that use WPF?
View 4 Repliesmy problem is that when I try to write a exe application for measuring the cpu usage every time I get the error:
A first chance exception of type 'System.InvalidOperationException' occurred in System.dll
A first chance exception of type 'System.FormatException' occurred in mscorlib.dll
The code I use is: [Code] And I get the above error,I searched a little in the internet but the most post were for database optimization and so on.
my application occurs an error "Exception of type 'System.OutOfMemoryException' was thrown." when trying to import xlsx file to sql server.
[Code]...
I am trying to perform a simple bound connection between an Access database and a text box on a form. This is actually Chapter 18 of the "Microsoft Visual Basic 2008" book.I get the same error message when trying to create my own project "MY ADO Form" or the "ADO Form" project supplied from the DVD provided with the book. I am running the 90 Day Trial Version of Visual Studio 2008 with SP1 and Net 3.5 SP1.
My operating system is the 64 bit Version of Vista with all updates.The error when I try to run the application in the debug mode is:"A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll"and as a result no data shows up in the text box from the database and the data selection bar is grayed out in the form. The underlying database "Students Data Set" appears to be fine as I have seen the correct data for the fields "Instructor" and "PhoneNumber" prior to running the program and when connecting with the database.
I've spent a substantial amount of time trying to figure this out, but I keep getting the same error
A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll
A first chance exception of type 'System.NullReferenceException' occurred in project1.exe
This happens when I try to use the DataReader.my code is
Public Function Identification() As List(Of Integer)
Dim returnIndex As New List(Of Integer)
Dim dbCount As String = "SELECT Bookingid FROM bookdetail WHERE Date =" & getCurrentTimeString() & " 12:00:00 a.m."
Dim count As Integer = 0
[code]....
An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll it also says make sure you do not have infinate loop or infinate recursion il give all code in order that they are executed in Check the chechbox and it disables all irelevent stuff and populates the combobox
Private Sub CheckBox_Spray_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CheckBox_Spray.CheckedChanged
If Me.CheckBox_Spray.Checked = True Then
[code]....
I am working on a multi-form code. For some reason, this randomly began happening just about the time I finished my code. The intial form loads just fine, but when I go to click on any of the selected buttons, the code crashes. and I get an unhandled exception of type 'System.stackoverflowexception' occured. I have checked for any subs calling subs that call subs and I don't have anything of that nature. It is breaking at the point that is bolded and underlined.
[Code]...
I have used the Gridview_PageIndexChanging event in asp.net.i have used the code like this:
gridFileDetails.PageIndex = e.NewPageIndex
During the run time when i clicked the next page,it generates an error:
An exception of type 'System.InvalidCastException' occurred in FFK.DLL but was not handled in user
code
Additional information: Unable to cast
object of type
'System.Web.UI.WebControls.ContentPlaceHolder'
to type
'System.Web.UI.WebControls.GridViewRow'.
in the RowCommand event,I have used the following RowCommand event:
Protected Sub gridFileDetails_RowCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewCommandEventArgs) Handles gridFileDetails.RowCommand
Dim row As GridViewRow = CType(CType(e.CommandSource, Control).NamingContainer, GridViewRow)
[code]....
For i = 1 To 60
Me.Controls("picturebox" & i).BackColor = Color.White
Next
i want to change backcolor of picturebox but when i run program,i get this error :
An exception of type 'System.NullReferenceException' occurred in EZEE Restaurant.exe but was not handled in user code
Additional information: Object reference not set to an instance of an object.i go to Project->Add reference and then look for "System.NullReferenceException" but i don't find it.
Dll libray with VC++
.h file
__declspec (dllexport) unsigned long QueryUser(const wchar_t* AccountName,
wchar_t FullUserName[100],
[code]....
an error : An unhandled exception of type 'System.ExecutionEngineException' occurred in TestLib.exe
Error 1 Custom tool error: Failed to generate code. Exception of type 'System.OutOfMemoryException' was thrown. C:Documents and Settingsmiller_aDesktopFront End FCOMOctobaseOctobasefcomDataSet.xsd 1 1 Octobase
What does this mean? I have this error after i tried to add a database to my project in vb.net.If you're not living on the edge, you're taking up too much room
I'm using a 64 Bit Windows 7 system and trying to use PrintDialog. I know it doesn't work on Windows 7 unless you add this code: PrintDialog1.UseEXDialog = True. So I have added that code but then I get this error for the following code: Dim result As DialogResult = PrintDialog1.ShowDialog().
And the error: "An exception of type 'System.Runtime.InteropServices.SEHException' occurred in System. Windows.Forms.dll but was not handled in user code. Additional information: External component has thrown an exception."
When I attempt to open forms in the designer in the IDE, I get this error:
Exception of type System.ComponentModel.Design.ExceptionCollection was thrown.
My project is building OK. Any ideas?
I have problem in calling DLL file in VB.Net that I had Created it in C++... it give me this error message: "An unhandled exception of type 'System.EntryPointNotFoundException' occurred in test_dll_1.exe. Additional information: Unable to find an entry point named 'add_1' in DLL 't1.dll'."
This is my code in C++ (header file)
[CODE]............
The one in the main
#include "header_1.h"
double add_1(double a, double b){
return (a+b);
[CODE].....................
This code only for creating dll and I did created it correctly and i had tested it in c++ and it did works.... but in the Vb.net I had no luck with it...This is the code that I wrote it in the VB.net
Imports System.Runtime.InteropServices
Public Class Form1
<DllImport("t1.dll")> Public Shared Function add_1(ByVal a1 As Double, ByVal a2 As Double) As Double
End Function
[CODE].....................
And, I did put the .dll file in the bin folder, but also with no luck...
I want to check if an IP address can be resolved to a hostname.I figured I would use System.Net.Dns.GetHostEntry as System.Net.Dns. GetHostByAddress is shown as obsolete in VS2008.
However,if I specify an invalid IP address to System.Net.Dns.GetHostEntry the HostName property equals the IP address I gave. If I use System.Net.Dns.GetHostByAddress it, rightly, gives a resolution error.I don't mind continuing to use System.Net.Dns. GetHostByAddress but is there any way to have System.Net.Dns.GetHostEntry throw an error if the IP address cannot be resolved to a hostname (other than by checking if the IP address given equals the hostname returned, I mean)
Error is Simple Application -- Error Type (A first chance exception of type 'System.InvalidCastException' occurred in Microsoft.VisualBasic.dll)
View 3 Repliesprogram supost to control (projector - done..., webcam - idk how do i read FPS of the camera ..., arduino - will take me 5 min...)
here is the code of form1:
[code]...
it chrashes here is the error : An unhandled exception of type 'System.StackOverflowException' occurred in Unknown Module.
When testing the followng code from Mastering VB2010, I get an Unable to cast object of type 'System.String' to type 'System.IFormatProvider' exception.In the Button1_Click event code Dim strmOut As New System.IO.StringWriter(SaveFileDialog1.FileName)the 'SaveFileDialog1. FileName' is underlined with a green squiggle and displays the following tool tip:Runtime errors might occur when converting 'String' to'System. Iformat Provider'.This is apparrently the problem but what does it mean and how do I fix it to get the code to work? 'Code being tested that runs the exception:Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click.[code]
View 12 Replies